Take a look at this CafePress Link:

http://www.cafepress.com/bull****4u

*Note that clicking on the link won't work because the word that is in between bull and 4 u is an obsenity, so is not postable. I think that most of you can figure out that it is a word that starts with 's' and ends with 't'....

It is advertising t-shirts, etc. that says "I don't share the road" and shows a car hitting a bicycle.

I wrote a note to CafePress wondering if this is in line with their policies, but haven't heard anything.